7”Aluminum Dome Enclosure, suitable for outdoor and indoor installation.     Double-decked design strengthens the heat insulation.     Meet IP66 protection level.     Build-in Fan & Heat make sure the mechanism works in a certain temperature. (Option).     A stainless steel retaining cable.     A body takes shape the two-course construction, the interior has ventilates the ounter-flow patent design.     Power Box (Option).     Fluorocarbon Baking Varnish: endurable environment, resistible acid & base, five years warrant (Option).     Nitrogen pressurize-able Dome Enclosure IP68 (Option).